Number of irredundant sets in the n-cycle graph.

Terms

a(0) =1a(1) =3a(2) =4a(3) =11a(4) =16a(5) =24a(6) =43a(7) =75a(8) =130a(9) =218a(10) =375a(11) =644a(12) =1106a(13) =1893a(14) =3244a(15) =5563a(16) =9538a(17) =16350a(18) =28026a(19) =48046a(20) =82366a(21) =141199a(22) =242053a(23) =414948a(24) =711341a(25) =1219442a(26) =2090470a(27) =3583661a(28) =6143419a(29) =10531574